<template>
  <el-upload
    class="avatar-uploader"
    action="#"
    :show-file-list="false"
    :http-request="upload"
    :before-upload="beforeAvatarUpload"
  >
    <img v-if="value" :src="value" class="avatar">
    <i v-else class="el-icon-plus avatar-uploader-icon" />
    <el-progress v-if="showProgress" :percentage="percent" />
  </el-upload>
</template>

<script>
const COS = require('cos-js-sdk-v5')
const cos = new COS({
  SecretId: 'AKID253qQmv1uZ4LNOFuUwBDxXu40lMkvsfJ',
  SecretKey: 'RenjRu9Azav2uZy84rHUUM4ZGpAJIEzg'
})
export default {
  props: {
    value: {
      type: String,
      default: ''

    }
  },
  data() {
    return {
      // imageUrl: '',
      percent: 60,
      showProgress: false
    }
  },
  methods: {
    upload(res) {
      if (res.file) {
        this.showProgress = true
        // 执行上传操作
        cos.putObject({
          Bucket: 'whtop-1314057920', /* 存储桶 */
          Region: 'ap-nanjing', /* 存储桶所在地域，必须字段 */
          Key: res.file.name, /* 文件名 */
          StorageClass: 'STANDARD', // 上传模式, 标准模式
          Body: res.file, // 上传文件对象
          onProgress: (progressData) => {
            console.log(JSON.stringify(progressData))
            this.percent = progressData.percent * 100
          }
        }, (err, data) => {
          console.log(err || data)
          // 上传成功之后
          if (data.statusCode === 200) {
            // this.imageUrl = `https:${data.Location}`
            this.$emit('input', `https:${data.Location}`)
          }
          this.showProgress = false
        })
      }
    },
    beforeAvatarUpload(file) {
      // const isJPG = file.type === 'image/jpeg'
      const isLt2M = file.size / 1024 / 1024 < 2

      // if (!isJPG) {
      //   this.$message.error('上传头像图片只能是 JPG 格式!')
      // }
      if (!isLt2M) {
        this.$message.error('上传头像图片大小不能超过 2MB!')
      }
      return isLt2M // && isJPG
    }
  }
}
</script>
<style>
  .avatar-uploader .el-upload {
    border: 1px dashed #d9d9d9;
    border-radius: 6px;
    cursor: pointer;
    position: relative;
    overflow: hidden;
  }
  .avatar-uploader .el-upload:hover {
    border-color: #409EFF;
  }
  .avatar-uploader-icon {
    font-size: 28px;
    color: #8c939d;
    width: 178px;
    height: 178px;
    line-height: 178px;
    text-align: center;
  }
  .avatar {
    width: 178px;
    height: 178px;
    display: block;
  }
</style>
